Russian Factory Sign: Не включать, работа на линии (White)

Orgin: Russia.
State: Used.
Material: Painted thick cardboard.
Size: 25x13cm

Orginal factory signs, some might have drill holes from where they once hang. 
Most are without and from storage.

Each hand painted and in it's way unique.

Sign reads: Не включать, работа на линии
can be translated into: Do not turn on, line is working.

Made to be durable, will outlast us all.